from launch import LaunchDescription
from launch_ros.actions import Node

def generate_launch_description():
   
    t1=Node(package="turtlesim",executable="turtlesim_node")  
    t2=Node(package="cpp02_service",executable="demo03_turtle_patrol_srv",output="screen") 
    t3=Node(package="cpp02_service",executable="demo04_turtle_patrol_clt",output="screen")
              
  
    return LaunchDescription([t1,t2,t3])  
    
   
